Is it possible to block and actual URL (mesu.apple.com) as opposed to the IP Address on a Draytek 2925?

OK, I have contacted the premium telephone support service and incase anyone else wants to know, here is what we did...

Go to ‘CSM, then go to ‘URL Content Filter Profile’.
Give the profile a name, set the Priority to ‘URL Access Control First’
Tick the ‘Enable URL Access Control’ and set the action to ‘Block’
Under Group/Object Selections click the ‘Edit’ button and select the Keyword Object required, if you have not created one, click on the underlined top ‘Keyword Object’ which will open another Window allowing you to create one.
Now we need to apply a firewall rule, so go to Firewall and then General Setup
Select the ‘Default Rule’ tab and then select the ‘URL Content Filter’ name from the drop down list and click on OK.
Reboot your router and test.